Cooling Water System

The base function of a cooling system is to remove heat from processes or equipment. Heat removed from one medium is transferred to another medium, or process fluid. Most often, the cooling medium is water. Cooling towers want water remedy to maintain operational expenses low and cooling efficiencies high. Without effective cooling water treatment, a cooling water system can suffer from scale formation, corrosion and fouling and may become a breeding ground for harmful bacteria. This reduces efficiency, shortens plant life and makes your operation unreliable and unsafe. Poor control can not only put your cooling process at risk, but can also incur huge cost in wasted energy, chemicals and water charges. To overcome these problems P&WC provides a comprehensive range of cooling water treatment products to keep your system operating safely and efficiently

Product lines for Cooling Water System


They are chemical agents used to kill or control bacteria, viruses, algae, and other microorganisms, they are necessary to maintain safe and clean water.

  • Improves the ability of biocides to control microbiological deposits
  • Enhances the performance both oxidizing and non-oxidizing biocides for controlling microbial populations and biofilm
  • Non-toxic, biodegradable and low foaming tendency
  • Effective on a wide spectrum of bacteria, fungi and algae
  • Controls biofilm formation
  • Easy to feed liquid
  • Effective over a wide pH range

Scale and Corrosion Inhibitors

Corrosion inhibitor controls are a blend of inhibitor and polymer designed to control scale formation and fouling, in recirculating and once through cooling systems.  Corrosion inhibitors for cooling water systems do this by keeping calcium suspended in the water, preventing it from crystallizing and thus protecting metal surfaces. Excess calcium is then flushed out of the circuit during blowdown.

  • Hardness scale inhibitor
  • Dispersant for particulate matter
  • Supplemental mineral scale control
  • Prevents metal precipitates
  • Patented calcium phosphate inhibitor
  • Superior dispersant
  • Disperses hydrocarbon contaminants

Phosphate based Inhibitors

Phosphate (corrosion inhibitors) are a liquid, phosphate-containing product designed to enhance corrosion protection in mill supply water systems, once through cooling systems and open recirculating systems.  This product contains phosphate to develop the optimal inhibitor level cost effectively. This product can be fed at a variety of feed rates depending on the application and the water chemistry. The phosphate film formed in these programs provides excellent protection for mild steel.

  • Patented calcium phosphate scale inhibitor
  • Maintains effectiveness under highly stressed conditions
  • Permits proper phosphate concentration for superior steel corrosion protection
  • Halogen Stable
  • Mild steel corrosion inhibitor
  • Excellent phosphate source for treatment programs

Nitrite based Inhibitors (for closed type cooling systems)

Nitrites are a blend of inhibitors designed to control corrosion in closed cooling systems. Contains nitrite, which provides rapid passivation and lasting protection of mild steel against corrosion.

Azole based Inhibitors

Inhibitors are a unique azole chemistry used for the inhibition of copper and copper alloy heat exchanger surfaces. This material is used to establish a protective corrosion inhibitor film on the metal surface. Inhibitor is unique because it is compatible with oxidizing biocides. This makes it a good choice for cooling systems where chlorine and/or bromine are used to control microbiological activity. Indirectly, it also reduces the corrosion of steel surfaces within a given cooling system. This occurs if the steel corrosion is a result of a galvanic reaction between the steel surface and the products of copper corrosion which have been deposited on the steel.

Defoamer (Antifoam)

These chemicals are a broad-based, multicomponent, oil-based antifoam / defoamer designed to control foam in industrial wastewater treatment and detergent-based foaming systems. This product can be applied to biological wastewater treatment systems as well as cooling towers and other systems where foam causes safety, processing, or nuisance concerns.

  • Eliminates and prevents foam
  • Effective on a broad range of foam types
  • High spread ability